Browsing Centre for Nano Science and Engineering (CeNSE) by Title
Now showing items 52-71 of 72
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Next Generation High Electron Mobility Transistor based on InGaN Quantum Well Channel
In past two decades and more, III-N based high electron mobility transistors (HEMTs) have generally used GaN as the channel layer. During this period, the quest for operating it at higher frequencies has resulted in the ... -
On-Chip Optical Sensing Platforms
Sensing has become an important field of research because of its wide variety of applications, such as; chemical sensing, biomedical diagnostics, environmental gas monitoring and oil quality monitoring. This has spurred ... -
Optical and Optothermal route towards dynamic nanomanipulation in fluids
Manipulation of materials with light has led to significant breakthroughs in biology, material science and soft condensed matter physics. Conventional optical tweezer, which is effectively a tightly focused laser beam, can ... -
Organic-Inorganic Heterojunctions for Application in Perovskite Based Photovoltaics
Organic-inorganic lead halide perovskite solar cells (PSC’s) research has seen most notable progress in the field of photovoltaics (PV). The very first PSC was reported in the year 2009 with efficiency of 3.8%, which rapidly ... -
Oxide Semiconductors for Silicon Tandem Solar Cells
In tandem solar cells two or more solar cells share the solar spectrum. The structure consists of two sub-cells on top of each other, with the top cell absorbing the blue photons and the bottom cells absorbing the red ... -
Parametric Manipulation in 2D Material based NEMS Resonators
In this this thesis, I have studied dynamics of the two-dimensional (2D) material based NEMS resonators with resonant frequency ranging typically from 10 MHz to 100 MHz. The experiment involved fabrication of the ... -
Porous Antibacterial Membranes Derived from Polyethylene (PE)/Polyethylene Oxide (PEO) Blends and Engineered Nanoparticles
(2018-06-21)The steep rise in the contamination of natural water sources, has led to an increasing demand for alternate solutions to cater safe drinking water to mankind. Water treatment by separation technology utilizes semipermeable ... -
Power Combining of Raman Fiber Lasers
Fiber lasers have become ubiquitous in industry and research for their numerous attractive properties that other lasers such as solid state lasers lack. However, conventional doped fiber lasers, though providing high power, ... -
Robust Electrochemical Sensing Techniques for Serum Creatinine Biosensor
Creatinine is an important biomarker for evaluating the renal function and its concentration in serum can be utilized for early detection of kidney disease, thyroid disorders, and muscular dystrophy. Accurate, reliable, ... -
Self-organisation of bacteria through swarming
Swarming is a unique example of social behaviour in bacteria. They represent the collective effort of bacteria to translocate on moist substrates. The bacteria extract fluid from the substrate through osmosis and produces ... -
Self-referencing Techniques in Optical Label-free Bio-molecular Sensing
Measurement of molecular interactions is essential for fundamental biological studies as well as for the development of health diagnostics devices. Several label-free and labeled techniques to characterize and quantify ... -
A simple method for measurement of high power, inline beam quality of high-power lasers
Over the past few decades, applications of high-power fiber laser in the area of material processing, medicine, defence, high precision micro-machining etc., is rapidly increasing. The primary reason behind thriving ... -
Statistical Inference in Biological and Diagnostic Systems
Biological systems are exceptionally good at sensing their environment with extraordinary precision. Certain single cellular organisms are even capable of detecting chemicals of the order of a single molecule. To achieve ... -
Structural, Magnetic and Electrical Studies of Multiferroic BiFeO3 and CuO Epitaxial Thin Films
The multiferroics are an important class of multifunctional material which simultaneously possess spontaneous ferroelectric polarization and magnetic ordering. If there exists a coupling between the ferroelectricity and ... -
Study and Control of Electromigration Driven Material Transport for Applications in Nanofabrication and Patterning
Transfer of mass energy is at the heart of many physical processes that form the backbone of modern science and technology. Transport studies help in understanding these processes and reveal the underlying physics that ... -
Theoretical and Experimental Study of Three-Dimensional Chiro-Optical Materials
Light-matter interactions at the nanoscale have been widely studied over the past few decades. In particular, the interaction of light with asymmetric nanostructures has harbored the interests of chemists, biologists and ... -
Towards an Integrated Graphene Nano-Opto-Electro-Mechanical System
Micro-electromechanical systems (MEMS) have found extensive applications in micromechanical sensing. The scaling of MEMS into nano-electromechanical systems (NEMS) was spurred primarily by the expectation of higher ... -
Towards Design and Development of Indigenous Rate-Grade MEMS Gyroscopes
Gyroscopes sense angular speed of the body on which they are mounted. Traditional mechanical gyroscopes are big, bulky, expensive, and hence limited to a few applications. With the advent of Micro-Electro-Mechanical Systems ... -
Transition metal oxide absorbers for photovoltaics
Several oxides are non-toxic, stable, and can be deposited using inexpensive techniques on a variety of substrates. There is a compelling case for use of oxide in photovoltaics, referred to as “all-oxide photovoltaics”. ... -
Transport in Interfacial Systems: Biosensor, Polymer, Colloid & Bacteria
Life forms as we know emerged due to unique mechanical and transport properties exhibited by Soft Materials at interface. For instance, the interior of a cell is separated from outside environment by lipid bilayer which ...